Hydraulic loader or unloader



April 17, 1945. P. w: scum 2,374,045

HYDRAULICILOADER OR UNLOADER gfied Jan. 31, 1944 P/wW p 14/ 6000/0,

Patented Apr. 17, 1945 UNITED STATES PATENT @FEECE HYDRAULIC LOADER onUNLOADER Philip W. Soucia, Caribou, Maine I Application January 31,1944, Serial No. 520,478

'7 Claims.

. ram designed for lifting a load either from a platform or the body ofa vehicle. I

Another object is to furnish a loader including a substantially verticalmast so mounted that it.

may be turned about its own axis to permit a load to be transferred toor from a platform adjacent the vehicle on which the apparatus ismounted.

A still further object is to supply a loader o the mast and pivoted armtype in which parts are adjustably connected to suit variation in theweights of loads, etc.

With the foregoing objects outlined and other objects in view which willappear as the description proceeds, the invention consists in the novelfeatures hereinafter described in detail, illustrated in theaccompanying drawing, and more particularly pointed out in the appendedclaims.

The drawing is an elevation of the apparatus, shown mounted on a motorvehicle.

Referring to the drawing, l designates a base plate adapted to berigidly secured by any suitable means, such as bolts 2, to the floor 3,or the like, of the vehicle on which the apparatus is mounted.

A socket or hollow pedestal 4 has its lower end rigidly secured to thebase plate and extends upwardly at a slight angle to the vertical, as isclear from the drawing.

A mast 5 has its lower end portion rotatably mounted in the socket, andis provided with a handle 6 to facilitate turning of the mast. anextension I is rigidly connected to the top of the mast and ispreferably provided with a-plurality of holes 8 for the reception of abolt 9 adjustably employed in-pivotally securing the inner end of an armIn to the mast. "H, or the like. having a series of holes [2 is rigidlyconnected to the medial portions of the arm, and is, in turn, pivotallyconnected by a bolt l3 to the rod ll of a ram l5. The lower end of therod has a piston or plunger l6 slid ably arranged in a cylinder II, thelower end of wh ch is pivotally connected at I8 to the mast 5.

with

An apertured plate In operation, the valve can be manipulated to lowerthe tongs 24, or the like, to grip a load on a platform alongside thevehicle, and then the valve may be turned to introduce the pressurefluid into the lower end of the cylinder.

Such pressure fluid will force the plunger [6 upwardly and, therefore,cause the arm ID to swing in a counter-clockwise direction. When the armis swung upwardly to the proper height, the valve is manipulated totrapthe pressure fluid in the cylinder, and then the handle 6 maybeturned to cause the mast to transfer the load into the vehicle.Obviously, if the apparatus is employed in unloading the vehicle; thisprocedure will be reversed.

While the apparatus has been illustrated as mentioned in a truck bodynear the side of the same, I prefer in some cases to mount it in the-middle of the floor of the truck body with the mast inclined toward anend of such body because in that event, if the load is lifted from aplatform arranged at one side of the truck body, such load A pressurefluid, such as oil or water, is introduced into and discharged from thelower end of the cylinder by means of a hose l9, preferably connected toa control valve 20 mounted on the will automatically cause the mast 5 totumin the socket 4 to shift the load to a position over the truck bodywithout any etfort on the part of the operator.

From the foregoing, it is believed the construction, operation, andadvantages of the invention may be readily understood, and I am awarethat changes may be made in the details disclosed without departing fromthe spirit of the invention, as expressed in the following claims.

I claim:

1. An apparatus of the character described, comprising a mast mounted toturn about its lon ax s, means forming the only support for the mast andarranged at the lower end portion thereof, the mast being rotatable foran entire revolution on said supporting means an arm having an innerendpivotally connected to the upper end portion of the mast,load-lifting means con-- nected to the outer end of the arm, and ahydraulic ram connecting a medial portion of the mast to a medialportion of the arm.

2. An apparatus of the character described, comprising a mast mounted toturn about its long axis, means forming the only support for the mastand arranged at the lower end portion thereof, the mast being rotatablefor an entire revolution on said supporting means an arm having an innerend pivotally connected to the upper end portion 01' the mast, the innerend of the am being adjustably connected to the mast to permit said endto be raised or lowered, load-lifting means connected to the outer endof the arm, and a hydraulic ram connecting a medial portion of the mastto a medial portion oi! the arm.

3. An apparatus of the character described, comprising a mast mounted toturn about its lon axis, means forming the only support for the mast andarranged at the lower end portion thereof, the mast being rotatable foran entire revolution on said supporting means an arm having an inner endpivotally connected to the upper end portion of the mast, load-liftingmeans connected to the outer end of the arm, and a hydraulic ramconnecting a medial portion of the mast to a medial portion of the arm,the ram being adiustably connected to the arm 50 that its upper end maybe secured to the arm at various points along the length thereof.

4. An apparatus ot-the character described, comprising a hollow pedestalarranged at a slight angle to the vertical, a mast having its lower endportion rotatably mounted inthe pedestal for a turning movement of 360",an arm having an inner end pivotally connected to the upper end portionof the mast, load-lifting means suspended from the outer end of the arm,and a hydraulic ram connecting a medial portion of the mast. to a medialportion of the arm.

5. An apparatus of the character described, composing a hollow pedestalarranged at a slight angle to the vertical and adapted to be mounted ona vehicle, a mast arranged at the same angle to the vertical and havingits lower end portion rotatably mounted in the pedestal. an arm havingan inner end pivotally connected to the upper end portion of the mast,load-lifting means suspended from the outer end or the arm, a piston rodhaving an upper end plvotally connected to a medial portion or the arm,a cylinder pivotally connected to a medial portion of the mast, aplunger on the rod operating within the cylinder, and controllable meansfor introducing a liquid into and discharging a liquid from the lowerend portion of the cylinder.

6. An apparatus at the character described comprising a hollow pedestalarranged at a slight angle to the vertical and adapted to be mounted ona vehicle, a mast member arranged at the same angle to the vertical andhaving its lower end portion rotatably mounted in the pedestal, an armmember having an inner end pivotally connected to the upper end portionof the mast member. load-lifting means suspended from the outer end ofthe arm member, a piston rod having an end pivotally connected to amedial portion oi one of said members, a cylinder pivotally connected toa medial portion or the other member, a. plunger on the rod operatingwithin the cylinder, and controllable means for introducing a liquidinto and discharging a liquid from one end portion of the cylinder forcontrolling relative movement of the plunger and cylinder.

7. An apparatus 01' the character described. comprising a pedestalarranged at a slight angle to the vertical and adapted to be mounted ona vehicle, a mast member arranged at the same angle to the vertical andhaving its lower end portion rotatably supported by the pedestal, an armmember having an inner end pivotally connected to the upper end portionor the mast member, load lilting means suspended from the outer end ofthe arm member, a piston rod having an end pivotally connected to amedial portion of one or said members, a cylinder pivot- 40 allyconnected to a medial portion oi the other member, a plunger on the rodoperating within the cylinder, and controllable means for introducing aliquid into and discharging a liquid from one end portion of thecylinder for controlling relative movement of the plunger and cylinder.

PHILIP W. SOUCIA.

